sing - snou
- singing
- singing propeller
- single anchor leg mooring
- single bend
- single blackwall hitch
- single block
- single bollard
- single bowline
- single burton
- single cabin
- single cant plane
- single core
- single day tide
- single decked flat pallet
- single diamong knot
- single force
- single knot
- single line ahead
- single load
- single mount
- single paddle
- single parameter method
- single plate keel
- single point mooring
- single point mooring jetty
- single pump
- single purchase
- single reduction gear turbine
- single rivet joint
- single riveted joint
- single riveting
- single rudder
- single sculler
- single shell
- single suspension lug
- single trip response
- single turn
- single wall knot
- single wall knot crowned
- single-acting pump
